Vulnerability Database

314,486

Total vulnerabilities in the database

CVE-2018-5105

WebExtensions can bypass user prompts to first save and then open an arbitrarily downloaded file. This can result in an executable file running with local user privileges without explicit user consent. This vulnerability affects Firefox < 58.

  • Published: Jun 11, 2018
  • Updated: Nov 9, 2025
  • CVE: CVE-2018-5105
  • Severity: High
  • Exploit:

CVSS v2:

  • Severity: High
  • Score: 7.2
  • AV:L/AC:L/Au:N/C:C/I:C/A:C

No CWE or OWASP classifications available.

Software From Fixed in
mozilla / firefox - 57.0.4.x
canonical / ubuntu_linux 16.04 16.04.x
canonical / ubuntu_linux 14.04 14.04.x
canonical / ubuntu_linux 17.10 17.10.x